CN106100731A - A kind of insert row control system of long-range LBS location navigation - Google Patents
A kind of insert row control system of long-range LBS location navigation Download PDFInfo
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- CN106100731A CN106100731A CN201610385724.1A CN201610385724A CN106100731A CN 106100731 A CN106100731 A CN 106100731A CN 201610385724 A CN201610385724 A CN 201610385724A CN 106100731 A CN106100731 A CN 106100731A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
- H04B10/116—Visible light communication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/20—Instruments for performing navigational calculations
- G01C21/206—Instruments for performing navigational calculations specially adapted for indoor navigation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
- H01R13/6675—Structural association with built-in electrical component with built-in electronic circuit with built-in power supply
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
- H01R13/6683—Structural association with built-in electrical component with built-in electronic circuit with built-in sensor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
- H01R13/6691—Structural association with built-in electrical component with built-in electronic circuit with built-in signalling means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/70—Structural association with built-in electrical component with built-in switch
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/502—LED transmitters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/516—Details of coding or modulation
- H04B10/54—Intensity modulation
- H04B10/541—Digital intensity or amplitude modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/69—Electrical arrangements in the receiver
- H04B10/691—Arrangements for optimizing the photodetector in the receiver
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Automation & Control Theory (AREA)
- General Physics & Mathematics (AREA)
- Optical Communication System (AREA)
Abstract
The invention discloses the insert row control system of a kind of long-range LBS location navigation, including LED, subscriber equipment, navigation server, central processing unit, field programmable gate array, reception antenna, photo-detector, signal processing circuit, power circuit, LED, power circuit；Described power circuit connects central processing unit and field programmable gate array respectively；Solar panel, mu balanced circuit, power-supply controller of electric and DC power-supply circuit it is provided with in described power circuit, indoor positioning navigation and service are combined by described indoor navigation system based on visible light communication, in the middle of network communication application of new technology to real work, it is greatly enhanced work efficiency, it will be seen that optical communication technique, power-line carrier communication merge existing mobile internet.
Description
Technical field
The present invention relates to indoor navigation field, the insert row control system of a kind of long-range LBS location navigation.
Background technology
Solar energy (solar energy), refers to the infrared radiant energy (seeing three kinds of modes that heat energy is propagated) of the sun, mainly
Performance is exactly the sunray often said.It is typically used as generating in the modern times or provides the energy for water heater.From life on earth birth
Since life, the infrared radiant energy existence mainly provided with the sun, and also understand with sun dry part from ancient human, and as system
The method making food, such as salt manufacturing and solarization cured fish etc..In the case of Fossil fuel reduces increasingly, solar energy has become the mankind and has used
The important component part of the energy, and be constantly developed.The utilization of solar energy has photothermal deformation and opto-electronic conversion two ways, too
It is a kind of emerging regenerative resource that sun can generate electricity.Sensu lato solar energy also includes tellurian wind energy, chemical energy, water energy
Deng.
Solar energy is discharged huge nuclear energy by solar interior hydrogen atom generation hydrogen helium fusion and produces, from the sun
Emittance.
The overwhelming majority of necessary for human energy is all directly or indirectly from the sun.Plant discharges oxygen by photosynthesis
Gas, absorbing carbon dioxide, and solar energy is transformed into chemical energy stores in plant.Coal, oil, natural gas etc. are changed
Stone fuel is also to be developed, by the animals and plants being embedded in underground ancient times, the primary energy formed through very long geological epoch.The earth itself
The energy contained is often referred to the energy relevant with the heat energy of earth interior and the energy relevant with nuclear reaction.
Along with smart mobile phone and the development of mobile Internet, the demand of navigation and positioning service is increased by people day by day.But
Being to be limited by conditions such as positioning time, positioning precision and complex indoor environments, GPS and BDStar navigation system are in indoor
All difficult location, reason is that the microwave signal that positioning system constellation is launched is the faintest, and frequency is the highest, i.e. will be along straight-line transmitting
Broadcast, and be difficult to through wall, in the last few years, it is seen that optical communication technique develops rapidly, relative to traditional communication technology (such as bluetooth
And Wi-Fi), its have low energy consumption, two-forty, without remarkable advantages such as electromagnetic interference.
Summary of the invention
The goal of the invention of the present invention is, overcomes the deficiency of art methods, it is provided that a kind of low energy consumption, two-forty, nothing
Electromagnetic interference, and based on visible light communication the energy-conservation indoor navigation system that subscriber equipment is combined with mobile Internet.
For achieving the above object, it is proposed that following technical scheme:
1, the insert row control system of a kind of long-range LBS location navigation, including central processing unit, field programmable gate array,
Signal modulation control equipment, reception antenna, photo-detector, signal processing circuit, power circuit, LED, subscriber equipment, navigation
Server, optical key module；
Described Intelligent socket includes microcontroller, insert row switch and Optical Receivers, and described Optical Receivers is from LED group
Receive LED communication signal, to obtaining control instruction after described LED communication signal processing, and described control instruction is transported to micro-
Controller, described microcontroller generates the instruction that performs of insert row switch according to described control instruction, and described insert row switch is electromagnetism
Relay, described electromagnetic relay is connected with the damping device of insert row；
Described smart jack includes microprocessor, power control circuit, circuitry for signal measurement, power-switching circuit, light-receiving mould
Block, described microprocessor receives the control instruction that described Optical Receivers obtains, and according to described control instruction, control circuit realizes
The energising of smart jack and power-off；Described power control circuit includes that relay, described microprocessor send control signal, controls
The folding of relay changes the power supply of load, and the capacity of described relay is higher than the peak power of load, described relay
Loop also includes diode and capacitor element, for absorbing reverse current and the high pressure of folding moment；Described circuitry for signal measurement
It is connected with power control circuit, it is thus achieved that the voltage of smart jack, electric current forceful electric power signal first pass through divider resistance, copper-manganese sheet is converted to
Weak electric signal, then input to special computation chip, complete plurality of voltages current effective value, power etc. and calculate, the data of generation
It is transported to microprocessor；The alternating voltage of 220V is carried out AC-DC conversion by described power-switching circuit, in output circuit system
The DC voltage needed
Described central processing unit connects optical key module, signal modulation control equipment, LED lamp, reception antenna, photo-detector, letter
Number process circuit；Described signal modulating equipment is responsible for modulation and is generated the original signal of telecommunication；Described LED lamp is monochromatic LED；Institute
Stating photo-detector is that visible light wave range responds preferable CCD electrooptical device；Described reception antenna is the optics of variable multiple
Camera lens；Described signal processing circuit adapts with photo-detector, for the process of video electrical signal, and determines light spot received
Shape, size and average received power；It is atmospheric channel between described searchlight and described reception antenna, the light that light source sends
It is transmitted by atmospheric channel；
Described field programmable gate array, inside includes configurable logic blocks CLB, input/output module IOB and interior
Three parts of portion's line；FPGA utilizes small-sized look-up table (16 × 1RAM) to realize combination logic, and each look-up table is connected to one
The input of individual d type flip flop, trigger drives other logic circuits again or drives I/O, thus constituting and both can realize combination
Logic function can realize again the basic logic unit module of sequential logic function, and these intermodules utilize metal connecting line to interconnect
Or it is connected to I/O module；The logic of FPGA loads programming data by internally static storage cell and realizes, and is stored in
Value in memory cell determines the side of connection between logic function and each module of logical block or between module with I/O
Formula, and finally determine the function achieved by FPGA, FPGA allows unlimited number of programming；To better implement the present invention, energy
Enough meet and make solar energy carry out generating electricity not or still meet when night whole system is powered in illuminance
In use, unnecessary electric energy will be stored in accumulator battery, and occur solar illuminating not or rainy weather or
During night, accumulator battery will carry out releasing electricity, and is delivered in DC power-supply circuit by the output circuit of power-supply controller of electric, centering
Central processor and field programmable gate array are powered, and reach 24 hours round-the-clock to make whole system work.
Further, LED is to be arranged on the luminaire of indoor known location, and each LED lamp use one is little
Integrated circuit, control system of switching on or off electricity can be passed through, allow it send unique passage of scintillation light, correspondence uniquely encodes information.LED lamp is sent out
The passage of scintillation light gone out is more than 120Hz, so human eye cannot see this flicker, but mobile phone camera uses Rolling shutter to flutter to be caught
To this flicker.The light that LED lamp is launched, correspondence uniquely encodes information, and corresponding unique positional information.Coding letter
In the navigation server that the mapping table of breath and positional information is stored in.Key to be sent is TTL level signal, i.e.+5V
Representing high level " 1 ", 0V represents low level " 0 "；Described LED drive module include PNP type paster audion S8550 and
Related peripheral device, for realizing the signal of telecommunication conversion to optical signal；
The device of described one one-to-many of optical key module；Optical key is one based on single-chip microcomputer STC12C2052AD design
Transmitting terminal.
Further, navigation server storage LED coding and the corresponding informance of position, cartographic information etc..Server is strong
Big computing capability can assist user's handheld device to carry out correlation computations.Such as, the calculating of indoor positioning relates to bigger meter
Calculation amount, the calculating of this part can be put in server, and user's handheld device has only to receive last result.
Further, after first being inputted target resource by subscriber equipment (such as mobile phone) is middle, handheld device photographic head is used to clap
Take the photograph LED lamp；Then, LED is decoded by the application program in handheld device, obtains the coding information of correspondence；It follows that
Handheld device is attached with navigation server by wireless network, the relation table in enquiry navigation server, obtains LED
Position；Finally, the application program on server uses indoor positioning algorithms to obtain the positional information of handheld device, and returns to hands
Holding equipment, in conjunction with the map in handheld device, it would be desirable to navigation information be shown in user device screen.
This beneficial effect of the invention:
Method and the technology such as application artificial taste intelligent system, knowledge engineering, pattern recognition, artificial neural network, carry out intelligence
Change, integrated, concert rationality, the computer management system of a new generation that designs and realize.WIFI easily by electromagnetic interference, transmission
Direction is uncontrollable, and password is easily trapped.But visible light communication is a kind of point-to-point transmission mode, has good confidentiality
Advantage.When the various kinds of sensors (Smoke Sensor, temperature sensor) being connected in VISIBLE LIGHT EMISSION module finds that disaster occurs
Time, alarm signal can be sent to the core control circuit of this module immediately.Core control circuit send immediately alarm signal to
Too in Network Communication module, issued the user with warning information by the Internet simultaneously.This smart jack should be able to come by cut-offfing power supply
Control the power supply of electrical equipment on socket, or frame control that the port of electrical equipment is said the word, the household electrical appliances of control include air-conditioning, electricity meal
Pot, smart jack etc..Smart jack communicates with core control circuit, transfers data to master controller or response master control
The order of device processed, it is ensured that the normal work of intelligent domestic system.Smart jack constitutes effective communication network with master controller,
Fast and stable is answered in communication.
It addition, Intelligent socket can achieve remotely control by gsm communication module, user can start before going home
Intelligent socket, improves indoor air humidity, closing, closing Intelligent socket before even if forgetting to go out after being away from home, it is possible to
To send control instruction by mobile phone, close Intelligent socket, the use time of Intelligent socket of so can making rational planning for, postpone to make
With life-span and the saving energy.
Optical key and intelligent mobile terminal combine, and android system can well be used to develop mobile phone A AP light key
Software, android system is the operating system increased income based on Linux, be mainly used in mobile terminal (mobile phone and
Flat board) in.Android system is compared with other system platform, has the biggest advantage.Its advantage is topmost is embodied in it
Opening.Android system is the system increased income completely, and all of fan and manufacturer can participate in Android
The exploitation of system, this just development for Android system laid fine basis.Android system has become as
The system that whole world installation amount first is big.Another big advantage of Android system is namely based on the platform of Google, and Google is public
The service products such as the map of department, search, mailbox, it is possible to seamless is applied in Andriod system.
Described field programmable gate array, inside includes configurable logic blocks CLB, input/output module IOB
With three parts of interconnector；FPGA utilizes small-sized look-up table (16 × 1RAM) to realize combination logic, and each look-up table connects
To the input of a d type flip flop, trigger drives other logic circuits again or drives I/O, thus constitutes and both can realize
Combination logic function can realize again the basic logic unit module of sequential logic function, and these intermodules utilize metal connecting line mutual
It is coupled or attached to I/O module；The logic of FPGA loads programming data by internally static storage cell and realizes, and deposits
Storage value in a memory cell determines coupling between logic function and each module of logical block or between module with I/O
Mode, and finally determine the function achieved by FPGA, FPGA allows unlimited number of programming；To better implement the present invention,
Disclosure satisfy that and make solar energy carry out generating electricity not or still meet when night whole system is powered in illuminance.
Described humidity collection sensor is SHT21 sensor, the most not in needs temperature sensor；This sensor can be right
The temperature and humidity of environment is monitored, humidity precision ± 2% (relative humidity 20%～80%), temperature accuracy ± 0.3 DEG C (environment
Temperature 25～42 DEG C).Sensor, through demarcating, had both been provided that I2C digital interface, was also provided that PWM simulates output mode.Because
Digital communication can be substantially reduced power consumption, and in normal operation, power consumption can be within 3 μ W, in the situation extending measurement interval
Under, power consumption also can reduce further.During using SHT21, A/D circuit is digitized signal conversion.In addition,
The resolution of SHT21 can also carry out the change of 8/12bit to 12/14bit by instruction, it is simple to detection state of charge, simultaneously
Output verification and, be favorably improved the reliability of communication.
Described microcontroller is to use single-chip microcomputer, and its CPU was made up of controller and arithmetical unit, is substantially carried out computing and refers to
Order identifies.Memorizer is the erasable flash memory of 8K, and working power is+5V.The inverting amplifier of agitator, stone is had inside it
English crystal and ceramic resonator collectively form self-excited oscillator.Pin is simple and reliable, powerful, easy to use, and has
Low power idle and power-down mode.
Described temperature sensor is DS18B20 sensor, and DS18B20 sensor has a line interface, uses simple side
Just, in actual use without outer member, directly utilize data/address bus and power, measure temperature range bigger.Therefore, make
Relatively wide by scope, purposes is bigger.
In use, unnecessary electric energy will be stored in accumulator battery, and occur that solar illuminating is inadequate or overcast and rainy
When gas or night, accumulator battery will carry out releasing electricity, and is delivered in DC power-supply circuit by the output circuit of power-supply controller of electric,
Central processing unit and field programmable gate array are powered, reach 24 hours round-the-clock to make whole system work.
The indoor navigation system based on visible light communication of the present invention, combines indoor positioning navigation and service, is led to by network
News new technique apply to well in the middle of real work, have simultaneously low energy consumption, two-forty, without remarkable advantages such as electromagnetic interference.
Visible light communication is embedded in indoor navigation service, has promoted development and the application of visible light communication, has had huge market
Prospect.Remote visible light communication system, have employed OOK modulation system at transmitting terminal, and OOK bandwidth demand is low, and hardware is real
The simplest, have only to the method by directly detection when decoding, determined the letter received by the presence or absence judging light
During breath 0 or 1；Make transmitting terminal cost reasonable；At receiving terminal, CCD is used to use high frame as photo-detector, hardware device
Frequently (more than 100fps), high sensitivity, high-responsivity CCD camera；Camera shoots with frame frequency identical with light source, and
Design software carries out collection and the process of data to CCD camera, the rule of modulated signal is presented, obtains corresponding ash
Angle value, thus complete the transmittance process of information, it is achieved the reception of character string.Select CCD as photo-detector, its sensitivity and
Responsiveness is more much higher than traditional PIN photodiode.It in contrast to conventional photodiode, use CCD camera to make
The position of light source can clearly indicate out in the picture, so, as long as can interpolate that out the position of signal, can make in the future
Use multiple light source, within the ability to accept of receiving terminal, increase exponentially transfer rate.And CCD is as photo-detector also
Can be simultaneously used in the middle of APT communication system.
Visible light communication is organically combined by the indoor positioning technologies of visible light communication with wireless location technology, plays respective
Excellent length, the most both can provide preferable precision and response speed, can cover wider scope, it is achieved seamless, fixed accurately
Position.Indoor positioning no electromagnetic pollution based on visible ray, disposes easily, had both met lighting requirement, and reduced again power consumption and cost.
Low in energy consumption, modulation and demodulation algorithm is simple, low cost, and volume is little, it is not necessary to redeploy lamp source, only need to be a low cost
LED is installed on original lamp socket to realize location, meets the requirement of extensibility and robustness.
Accompanying drawing explanation
Fig. 1 is the workflow diagram of the indoor navigation system based on visible light communication of the present invention；
Fig. 2 is the structure chart of indoor navigation system based on visible light communication.
Detailed description of the invention
Below in conjunction with the accompanying drawings the insert row control system of a kind of long-range LBS location navigation of the present invention is made the most detailed retouching
State:
2 as it is shown in figure 1, the insert row control system of a kind of long-range LBS location navigation, including central processing unit, field-programmable
Gate-array circuit, signal modulation control equipment, reception antenna, photo-detector, signal processing circuit, power circuit, LED, use
Family equipment, navigation server, optical key module；
Described smart jack includes microprocessor, power control circuit, circuitry for signal measurement, power-switching circuit, light-receiving mould
Block, described microprocessor receives the control instruction that described Optical Receivers obtains, and according to described control instruction, control circuit realizes
The energising of smart jack and power-off；Described power control circuit includes that relay, described microprocessor send control signal, controls
The folding of relay changes the power supply of load, and the capacity of described relay is higher than the peak power of load, described relay
Loop also includes diode and capacitor element, for absorbing reverse current and the high pressure of folding moment；Described circuitry for signal measurement
It is connected with power control circuit, it is thus achieved that the voltage of smart jack, electric current forceful electric power signal first pass through divider resistance, copper-manganese sheet is converted to
Weak electric signal, then input to special computation chip, complete plurality of voltages current effective value, power etc. and calculate, the data of generation
It is transported to microprocessor；The alternating voltage of 220V is carried out AC-DC conversion by described power-switching circuit, in output circuit system
The DC voltage needed
Described central processing unit connects optical key module, signal modulation control equipment, LED lamp, reception antenna, photo-detector, letter
Number process circuit；Described signal modulating equipment is responsible for modulation and is generated the original signal of telecommunication；Described LED lamp is monochromatic LED；Institute
Stating photo-detector is that visible light wave range responds preferable CCD electrooptical device；Described reception antenna is the optics of variable multiple
Camera lens；Described signal processing circuit adapts with photo-detector, for the process of video electrical signal, and determines light spot received
Shape, size and average received power；It is atmospheric channel between described searchlight and described reception antenna, the light that light source sends
It is transmitted by atmospheric channel；
Described LED is to be arranged on the luminaire of indoor known location, and each LED lamp uses a little integrated electricity
Road, can pass through control system of switching on or off electricity, allow it send unique passage of scintillation light, and correspondence uniquely encodes information.The flicker that LED lamp sends
Light is more than 120Hz, so human eye cannot see this flicker, but mobile phone camera uses Rolling shutter to flutter grasps this sudden strain of a muscle
Bright.The light that LED lamp is launched, correspondence uniquely encodes information, and corresponding unique positional information.Coding information and position
In the navigation server that the mapping table of information is stored in.Key to be sent is that TTL level signal, i.e.+5V represent high electricity
Flat " 1 ", 0V represents low level " 0 "；Described LED drive module includes PNP type paster audion S8550 and related peripheral thereof
Device, for realizing the signal of telecommunication conversion to optical signal；
The device of described one one-to-many of optical key module；Optical key is one based on single-chip microcomputer STC12C2052AD design
Transmitting terminal.
Described field programmable gate array, inside includes configurable logic blocks CLB, input/output module IOB
With three parts of interconnector；FPGA utilizes small-sized look-up table (16 × 1RAM) to realize combination logic, and each look-up table connects
To the input of a d type flip flop, trigger drives other logic circuits again or drives I/O, thus constitutes and both can realize
Combination logic function can realize again the basic logic unit module of sequential logic function, and these intermodules utilize metal connecting line mutual
It is coupled or attached to I/O module；The logic of FPGA loads programming data by internally static storage cell and realizes, and deposits
Storage value in a memory cell determines coupling between logic function and each module of logical block or between module with I/O
Mode, and finally determine the function achieved by FPGA, FPGA allows unlimited number of programming；To better implement the present invention,
Disclosure satisfy that and make solar energy carry out generating electricity not or still meet when night whole system is powered in illuminance.
In use, unnecessary electric energy will be stored in accumulator battery, and occur that solar illuminating is inadequate or overcast and rainy
When gas or night, accumulator battery will carry out releasing electricity, and is delivered in DC power-supply circuit by the output circuit of power-supply controller of electric,
Central processing unit and field programmable gate array are powered, reach 24 hours round-the-clock to make whole system work.
Described navigation server storage LED coding and the corresponding informance of position, cartographic information etc..The calculating that server is powerful
Ability can assist user's handheld device to carry out correlation computations.Such as, the calculating of indoor positioning relates to bigger amount of calculation, this portion
The calculating divided can be put in server, and user's handheld device has only to receive last result.
In described subscriber equipment (such as mobile phone) after input target resource, use handheld device photographic head shooting LED lamp；So
After, LED is decoded by the application program in handheld device, obtains the coding information of correspondence；It follows that handheld device is passed through
Wireless network is attached with navigation server, the relation table in enquiry navigation server, obtains LED position；Finally, clothes
Application program on business device uses indoor positioning algorithms to obtain the positional information of handheld device, and returns to handheld device, in conjunction with
Map in handheld device, it would be desirable to navigation information be shown in user device screen.
Described remote visible light communication system specifically includes:
Manipulator, needs modulates baseband signals to light carrier for visible light communication transmitting terminal, and the effect of manipulator is exactly
Such as OOK modulation, PPM modulation etc., information is first modulated into the signal of telecommunication according to different modulation systems.On manipulator hardware
51 conventional single-chip microcomputer series can be used, in order to reach the requirement of higher speed and precision, it is also possible to select FPGA
Deng.
LED drives, and is used for converting electrical signals to optical signal.LED drives module to be used for driving LED light source
Dynamic function, is converted into optical signal by the signal of telecommunication being adjusted to simultaneously and is loaded on LED light source.Such as 51 single-chip microcomputers, it triggers
Mode is that TTL triggers, and completes to drive LED light source.
LED, is the discharger of visible light communication system, in order to meet the demand of communication system, should select merit as far as possible
Rate is big, beam divergence angle is little, white light LEDs light source.Additionally, select array format LED light source can increase luminous power, and to beam spreading
Angle commonly reaches 4 degree.
LED controller, is used for controlling the equipment of light source and camera, completes miscellaneous function.
Atmospheric channel, the flashlight being adjusted to is launched, is transmitted by atmospheric channel by light source, will be subject in transmitting procedure
Impact to atmospheric channel.
Camera lens, camera lens is i.e. reception antenna, mainly completes the seizure receive capabilities of optical signal, and camera lens can enter
Row zoom, changes field of view of receiver angle, and can zoom in or out target.For the ease of cooperating with CCD camera, it is configured with
Motorized zoom lens and encoder, it is possible to achieve computer controls autozoom.
CCD camera, CCD is sensitive component, mainly converts optical signal into signal of telecommunication reimaging.
CCD camera needs to mate the speed of light source, and CCD camera can complete high frame frequency collection.CCD camera passes through
Gigabit Ethernet is connected on computer, and is completed collection and the process of view data by program.
Imaging process, for the modulated optical signal received is received imaging, analyzes its gray-level light intensity, solves
Recalling raw information, the information that completes receives.
As in figure 2 it is shown, indoor navigation system workflow based on visible light communication is user inputs needs on mobile phone screen
Target data, by inquiry server in map, obtain the more specific location information of target resource, as navigation purpose ground.
Further, user uses several LED lamps that handheld device shooting is nearest, and photographic head uses Rolling shutter to obtain these LED
The flicker information of lamp, and use image processing techniques, the flicker information photographed can be solved by handheld device or server
Code, obtains the coding information of correspondence.Further, in the application program of server end coding site correspondence table on the server
Make a look up, obtain the positional information of these LED lamps.Further, navigation server is based on several LED being taken
The positional information of lamp, and they image-forming informations in handheld device photographic head, use location sides based on multiple LED lamps
Method, obtains position and the information of shooting angles of handheld device, as starting point and the direction of navigation.Further, navigation server
Using path finding algorithm, obtain the navigation information from starting point to destination, these information will be sent to the hand-held of user
On equipment, in conjunction with the acceleration transducer in handheld device, provide the user navigation Service.
Above in conjunction with accompanying drawing, embodiments of the invention are described, but the invention is not limited in above-mentioned concrete
Embodiment, above-mentioned detailed description of the invention is only schematic rather than restrictive, those of ordinary skill in the art
Under the enlightenment of the present invention, in the case of without departing from present inventive concept and scope of the claimed protection, it may also be made that a lot
Form, within these belong to the protection of the present invention.
Claims (5)
1. the insert row control system of a long-range LBS location navigation, it is characterised in that include central processing unit, field-programmable
Gate-array circuit, signal modulation control equipment, reception antenna, photo-detector, signal processing circuit, power circuit, LED, use
Family equipment, navigation server, optical key module；
Described Intelligent socket includes microcontroller, insert row switch and Optical Receivers, and described Optical Receivers is from LED group
Receive LED communication signal, to obtaining control instruction after described LED communication signal processing, and described control instruction is transported to micro-
Controller, described microcontroller generates the instruction that performs of insert row switch according to described control instruction, and described insert row switch is electromagnetism
Relay, described electromagnetic relay is connected with the damping device of insert row；
Described smart jack includes microprocessor, power control circuit, circuitry for signal measurement, power-switching circuit, light-receiving mould
Block, described microprocessor receives the control instruction that described Optical Receivers obtains, and according to described control instruction, control circuit realizes
The energising of smart jack and power-off；Described power control circuit includes that relay, described microprocessor send control signal, controls
The folding of relay changes the power supply of load, and the capacity of described relay is higher than the peak power of load, described relay
Loop also includes diode and capacitor element, for absorbing reverse current and the high pressure of folding moment；Described circuitry for signal measurement
It is connected with power control circuit, it is thus achieved that the voltage of smart jack, electric current forceful electric power signal first pass through divider resistance, copper-manganese sheet is converted to
Weak electric signal, then input to special computation chip, complete plurality of voltages current effective value, power etc. and calculate, the data of generation
It is transported to microprocessor；The alternating voltage of 220V is carried out AC-DC conversion by described power-switching circuit, in output circuit system
The DC voltage needed
Described central processing unit connects optical key module, signal modulation control equipment, LED lamp, reception antenna, photo-detector, letter
Number process circuit；Described signal modulating equipment is responsible for modulation and is generated the original signal of telecommunication；Described LED lamp is monochromatic LED；Institute
Stating photo-detector is that visible light wave range responds preferable CCD electrooptical device；Described reception antenna is the optics of variable multiple
Camera lens；Described signal processing circuit adapts with photo-detector, for the process of video electrical signal, and determines light spot received
Shape, size and average received power；It is atmospheric channel between described searchlight and described reception antenna, the light that light source sends
It is transmitted by atmospheric channel；
Being provided with intelligent mobile terminal in described optical key module, based on intelligent mobile terminal operating system, design is based on virtual
The key of serial ports sends the software module of intelligent mobile terminal, sends out key by the software module of intelligent mobile terminal and believes
Breath, key information is exported by the min-USB mouth of intelligent mobile terminal；The key information exported, based on intelligent mobile terminal
OTG function, in external drive module loading to LED, completes the transmission of key information by LED；Described power supply electricity
Road connects central processing unit and field programmable gate array respectively；Be provided with in described power circuit solar panel,
Mu balanced circuit, power-supply controller of electric and DC power-supply circuit；Wherein, described LED by light signal and navigation server even
Connecing, the light that described LED lamp sends, correspondence uniquely encodes information, and corresponding unique positional information.
2. navigation server storage LED coding and the corresponding informance of position, cartographic information described in.
3. according to the insert row control system of a kind of long-range LBS location navigation described in claim 1, it is characterised in that described long distance
Transmitting terminal and receiving terminal is mainly included from visible light communication system equipment；Transmitting terminal can use the modulation systems such as OOK, PPM, light
The optical signal modulated is launched by source with the rule of high speed, light and shade change, uses high-power low beam divergence angle array LED to make
For light source, owing to modulation rate is in 100 bit magnitudes, single-chip microcomputer can be used to coordinate C++ software programming to carry out transmitting terminal
Design of hardware and software, it is achieved the transmission of character string；Receiving terminal, uses CCD to use high frame frequency as photo-detector, hardware device
More than 100fps, high sensitivity, high-responsivity CCD camera；Camera shoots with frame frequency identical with light source, and designs
Software carries out collection and the process of data to CCD camera, the rule of modulated signal is presented, obtains corresponding gray value,
Thus complete the transmittance process of information, it is achieved the reception of character string；Described charging socket is arranged at the side of door close；
Described field programmable gate array, inside includes configurable logic blocks CLB, input/output module IOB and interior
Three parts of portion's line；FPGA utilizes small-sized look-up table (16 × 1RAM) to realize combination logic, and each look-up table is connected to one
The input of individual d type flip flop, trigger drives other logic circuits again or drives I/O, thus constituting and both can realize combination
Logic function can realize again the basic logic unit module of sequential logic function, and these intermodules utilize metal connecting line to interconnect
Or it is connected to I/O module；The logic of FPGA loads programming data by internally static storage cell and realizes, and is stored in
Value in memory cell determines the side of connection between logic function and each module of logical block or between module with I/O
Formula, and finally determine the function achieved by FPGA, FPGA allows unlimited number of programming.
4. according to the insert row control system of a kind of long-range LBS location navigation described in claim 1, it is characterised in that described user
Equipment can use photographic head to shoot LED lamp, and have application program and be decoded LED, obtains the coding of correspondence
Information, is attached with navigation server by wireless network, obtains navigation information；Key to be sent is TTL level signal,
I.e.+5V represents high level " 1 ", and 0V represents low level " 0 "；Described LED drive module includes PNP type paster audion
S8550 and related peripheral device thereof, for realizing the signal of telecommunication conversion to optical signal；One one-to-many of described optical key module
Device；Optical key is a kind of transmitting terminal based on single-chip microcomputer STC12C2052AD design.
5. according to the insert row control system of a kind of long-range LBS location navigation described in claim 1, it is characterised in that navigation Service
Device storage LED coding and the corresponding informance of position, cartographic information, described navigation server is for the calculating of indoor positioning；With
After family equipment inputs target resource, use handheld device photographic head shooting LED lamp；Then, the application journey in handheld device
Ordered pair LED is decoded, and obtains the coding information of correspondence；Handheld device is carried out even by wireless network and navigation server
Connect, the relation table in enquiry navigation server, obtain LED position；Application program on server uses indoor positioning algorithms
Obtain the positional information of handheld device, and return to handheld device, in conjunction with the map in handheld device, it would be desirable to navigation information
It is shown in user device screen.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610385724.1A CN106100731A (en) | 2016-06-03 | 2016-06-03 | A kind of insert row control system of long-range LBS location navigation |
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| CN201610385724.1A CN106100731A (en) | 2016-06-03 | 2016-06-03 | A kind of insert row control system of long-range LBS location navigation |
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| CN201610385724.1A Pending CN106100731A (en) | 2016-06-03 | 2016-06-03 | A kind of insert row control system of long-range LBS location navigation |
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Application publication date: 20161109 |